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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| BranchTreeNode.java | 0% | 0% | 0% | 0% |
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| 1 | /* | |
| 2 | * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved. | |
| 3 | * | |
| 4 | * This software is open source. | |
| 5 | * See the bottom of this file for the licence. | |
| 6 | */ | |
| 7 | ||
| 8 | package org.dom4j.swing; | |
| 9 | ||
| 10 | import java.util.ArrayList; | |
| 11 | import java.util.Enumeration; | |
| 12 | import java.util.List; | |
| 13 | ||
| 14 | import javax.swing.tree.TreeNode; | |
| 15 | ||
| 16 | import org.dom4j.Branch; | |
| 17 | import org.dom4j.CharacterData; | |
| 18 | import org.dom4j.Node; | |
| 19 | ||
| 20 | /** | |
| 21 | * <p> | |
| 22 | * <code>BranchTreeNode</code> implements the Swing TreeNode interface to bind | |
| 23 | * dom4j XML Branch nodes (i.e. Document and Element nodes) to a Swing | |
| 24 | * TreeModel. | |
| 25 | * </p> | |
| 26 | * | |
| 27 | * @author <a href="mailto:james.strachan@metastuff.com">James Strachan </a> | |
| 28 | * @author Jakob Jenkov | |
| 29 | * @version $Revision: 1.10 $ | |
| 30 | */ | |
| 31 | public class BranchTreeNode extends LeafTreeNode { | |
| 32 | /** Stores the child tree nodes */ | |
| 33 | protected List children; | |
| 34 | ||
| 35 | 0 | public BranchTreeNode() { |
| 36 | } | |
| 37 | ||
| 38 | 0 | public BranchTreeNode(Branch xmlNode) { |
| 39 | 0 | super(xmlNode); |
| 40 | } | |
| 41 | ||
| 42 | 0 | public BranchTreeNode(TreeNode parent, Branch xmlNode) { |
| 43 | 0 | super(parent, xmlNode); |
| 44 | } | |
| 45 | ||
| 46 | // TreeNode methods | |
| 47 | // ------------------------------------------------------------------------- | |
| 48 | 0 | public Enumeration children() { |
| 49 | 0 | return new Enumeration() { |
| 50 | private int index = -1; | |
| 51 | ||
| 52 | 0 | public boolean hasMoreElements() { |
| 53 | 0 | return (index + 1) < getChildCount(); |
| 54 | } | |
| 55 | ||
| 56 | 0 | public Object nextElement() { |
| 57 | 0 | return getChildAt(++index); |
| 58 | } | |
| 59 | }; | |
| 60 | } | |
| 61 | ||
| 62 | 0 | public boolean getAllowsChildren() { |
| 63 | 0 | return true; |
| 64 | } | |
| 65 | ||
| 66 | 0 | public TreeNode getChildAt(int childIndex) { |
| 67 | 0 | return (TreeNode) getChildList().get(childIndex); |
| 68 | } | |
| 69 | ||
| 70 | 0 | public int getChildCount() { |
| 71 | 0 | return getChildList().size(); |
| 72 | } | |
| 73 | ||
| 74 | 0 | public int getIndex(TreeNode node) { |
| 75 | 0 | return getChildList().indexOf(node); |
| 76 | } | |
| 77 | ||
| 78 | 0 | public boolean isLeaf() { |
| 79 | 0 | return getXmlBranch().nodeCount() <= 0; |
| 80 | } | |
| 81 | ||
| 82 | 0 | public String toString() { |
| 83 | 0 | return xmlNode.getName(); |
| 84 | } | |
| 85 | ||
| 86 | // Implementation methods | |
| 87 | // ------------------------------------------------------------------------- | |
| 88 | ||
| 89 | /** | |
| 90 | * Uses Lazy Initialization pattern to create a List of children | |
| 91 | * | |
| 92 | * @return DOCUMENT ME! | |
| 93 | */ | |
| 94 | 0 | protected List getChildList() { |
| 95 | // for now lets just create the children once, the first time they | |
| 96 | // are asked for. | |
| 97 | // XXXX - we may wish to detect inconsistencies here.... | |
| 98 | 0 | if (children == null) { |
| 99 | 0 | children = createChildList(); |
| 100 | } | |
| 101 | ||
| 102 | 0 | return children; |
| 103 | } | |
| 104 | ||
| 105 | /** | |
| 106 | * Factory method to create List of children TreeNodes | |
| 107 | * | |
| 108 | * @return DOCUMENT ME! | |
| 109 | */ | |
| 110 | 0 | protected List createChildList() { |
| 111 | // add attributes and content as children? | |
| 112 | 0 | Branch branch = getXmlBranch(); |
| 113 | 0 | int size = branch.nodeCount(); |
| 114 | 0 | List childList = new ArrayList(size); |
| 115 | ||
| 116 | 0 | for (int i = 0; i < size; i++) { |
| 117 | 0 | Node node = branch.node(i); |
| 118 | ||
| 119 | // ignore whitespace text nodes | |
| 120 | 0 | if (node instanceof CharacterData) { |
| 121 | 0 | String text = node.getText(); |
| 122 | ||
| 123 | 0 | if (text == null) { |
| 124 | 0 | continue; |
| 125 | } | |
| 126 | ||
| 127 | 0 | text = text.trim(); |
| 128 | ||
| 129 | 0 | if (text.length() <= 0) { |
| 130 | 0 | continue; |
| 131 | } | |
| 132 | } | |
| 133 | ||
| 134 | 0 | childList.add(createChildTreeNode(node)); |
| 135 | } | |
| 136 | ||
| 137 | 0 | return childList; |
| 138 | } | |
| 139 | ||
| 140 | /** | |
| 141 | * Factory method to create child tree nodes for a given XML node type | |
| 142 | * | |
| 143 | * @param xmlNode | |
| 144 | * DOCUMENT ME! | |
| 145 | * | |
| 146 | * @return DOCUMENT ME! | |
| 147 | */ | |
| 148 | 0 | protected TreeNode createChildTreeNode(Node xmlNode) { |
| 149 | 0 | if (xmlNode instanceof Branch) { |
| 150 | 0 | return new BranchTreeNode(this, (Branch) xmlNode); |
| 151 | } else { | |
| 152 | 0 | return new LeafTreeNode(this, xmlNode); |
| 153 | } | |
| 154 | } | |
| 155 | ||
| 156 | 0 | protected Branch getXmlBranch() { |
| 157 | 0 | return (Branch) xmlNode; |
| 158 | } | |
| 159 | } | |
| 160 | ||
| 161 | /* | |
| 162 | * Redistribution and use of this software and associated documentation | |
| 163 | * ("Software"), with or without modification, are permitted provided that the | |
| 164 | * following conditions are met: | |
| 165 | * | |
| 166 | * 1. Redistributions of source code must retain copyright statements and | |
| 167 | * notices. Redistributions must also contain a copy of this document. | |
| 168 | * | |
| 169 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 170 | * this list of conditions and the following disclaimer in the documentation | |
| 171 | * and/or other materials provided with the distribution. | |
| 172 | * | |
| 173 | * 3. The name "DOM4J" must not be used to endorse or promote products derived | |
| 174 | * from this Software without prior written permission of MetaStuff, Ltd. For | |
| 175 | * written permission, please contact dom4j-info@metastuff.com. | |
| 176 | * | |
| 177 | * 4. Products derived from this Software may not be called "DOM4J" nor may | |
| 178 | * "DOM4J" appear in their names without prior written permission of MetaStuff, | |
| 179 | * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd. | |
| 180 | * | |
| 181 | * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org | |
| 182 | * | |
| 183 | * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND | |
| 184 | * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 185 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 186 | * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE | |
| 187 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 188 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 189 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 190 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 191 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 192 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 193 | * POSSIBILITY OF SUCH DAMAGE. | |
| 194 | * | |
| 195 | * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved. | |
| 196 | */ |
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